Finding the Fourth Proportional to 5,420,575.16, 8,129,198.10 and 3,748,424.12
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Solution
The fourth proportional to 5,420,575.16, 8,129,198.10 and 3,748,424.12 is: 5,621,485.05
Step by Step Solution
- Step 1: Write the proportion equation
5,420,575.16 : 8,129,198.10 = 3,748,424.12 : x - Step 2: Convert to fraction form
5,420,575.16/8,129,198.10 = 3,748,424.12/x - Step 3: Cross multiply
5,420,575.16x = 8,129,198.10 × 3,748,424.12 - Step 4: Simplify right side
5,420,575.16x = 30,471,682,234,298.17 - Step 5: Solve for x
x = 30,471,682,234,298.17/5,420,575.16 - Step 6: Final answer
x = 5,621,485.05
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.